The leaders' retreat "is a key bilateral platform for the prime ministers to drive relations forward", Singa- pore's Ministry of Foreign Affairs said in a statement yesterday.

The prime ministers and ministers in their delegations are due to meet today for bilateral talks.

In the afternoon, the two leaders are to make site visits to joint ventures by Temasek Holdings and Khazanah Nasional.

They will unveil the Marina One project in Marina Bay, before travelling to Iskandar Malaysia, where they will unveil Urban Wellness and Resort Wellness projects in Medini.

Datuk Seri Najib will be accompanied by his wife, Datin Rosmah Mansor, and several Cabinet ministers and senior officials.

The Singapore delegation includes Deputy Prime Minister Teo Chee Hean, who is also Coordinating Minister for National Security and Minister for Home Affairs, as well as several other Cabinet ministers.